| Quarterly Financial Information (Unaudited) |
| (in millions, except per share data) | | First Quarter | | Second Quarter | | Third Quarter | | Fourth Quarter | | Total Year | | 2015 | | | | | | | | | | | | Revenue | $ | 17,853 | $ | 18,743 | $ | 18,669 | $ | 19,245 | $ | 74,510 | | Operating income | $ | 3,890 | $ | 4,105 | $ | 4,001 | $ | 4,002 | $ | 15,998 | | Net income attributable to Comcast Corporation | $ | 2,059 | $ | 2,137 | $ | 1,996 | $ | 1,971 | $ | 8,163 | | Basic earnings per common share attributable to Comcast Corporation shareholders | $ | 0.82 | $ | 0.85 | $ | 0.81 | $ | 0.80 | $ | 3.28 | | Diluted earnings per common share attributable to Comcast Corporation shareholders | $ | 0.81 | $ | 0.84 | $ | 0.80 | $ | 0.79 | $ | 3.24 | | Dividends declared per common share | $ | 0.25 | $ | 0.25 | $ | 0.25 | $ | 0.25 | $ | 1.00 | | 2014 | | | | | | | | | | | | Revenue | $ | 17,408 | $ | 16,844 | $ | 16,791 | $ | 17,732 | $ | 68,775 | | Operating income | $ | 3,568 | $ | 3,804 | $ | 3,745 | $ | 3,787 | $ | 14,904 | | Net income attributable to Comcast Corporation(a) | $ | 1,871 | $ | 1,992 | $ | 2,592 | $ | 1,925 | $ | 8,380 | | Basic earnings per common share attributable to Comcast Corporation shareholders | $ | 0.72 | $ | 0.77 | $ | 1.00 | $ | 0.75 | $ | 3.24 | | Diluted earnings per common share attributable to Comcast Corporation shareholders | $ | 0.71 | $ | 0.76 | $ | 0.99 | $ | 0.74 | $ | 3.20 | | Dividends declared per common share | $ | 0.225 | $ | 0.225 | $ | 0.225 | $ | 0.225 | $ | 0.90 |
(a) In the third quarter of 2014, net income attributable to Comcast Corporation included $759 million of favorable income tax adjustments resulting from a reduction in our accruals for uncertain tax positions and the related accrued interest on these tax positions. See Note 15 for additional information. |